Guangzhou Eric Wei Chemical Co., Ltd.
Guangzhou Eric Wei Chemical Co., Ltd.

Kukdo Chemical SMPN-638S Epoxy Resin

SMPN-638S is a premium high-performance semi-solid phenolic novolac epoxy resin in Kukdo’s SMPN series, designed for high-end composite manufacturing and severe environment protective coatings. It features ultra-high crosslinking density and excellent heat & chemical resistance, forming dense and tough cured coatings.

Features Of Kukdo Chemical SMPN-638S Epoxy Resin

  • Superior heat resistance - Excellent high-temperature stability, high long-term service temperature, strong thermal oxidation stability

  • Strong chemical protection - Outstanding resistance to strong acids, alkalis, organic solvents and salt spray erosion

  • High crosslinking density - Multifunctional structure, high crosslinking density after curing, excellent anti-permeability

  • Semi-solid easy processing - Form suitable for various molding processes, balancing operability and molding stability

  • Excellent bonding strength - Strong adhesion to fibers, metals, concrete and other substrates, firm interface bonding

Typical Applications Of Kukdo Chemical SMPN-638S Epoxy Resin

  • High-end composite materials - Matrix resin for carbon fiber/glass fiber reinforced composites, suitable for aerospace and automotive lightweight structural parts

  • Severe environment protective coatings - Heavy anti-corrosion coatings for high-temperature equipment and chemical reactors

  • Electronic and electrical encapsulation - Insulation encapsulation and impregnation of high-end electronic components and transformers

  • High-performance adhesives - Structural bonding of metal-metal and metal-composite materials, suitable for high-temperature working conditions

  • Wear-resistant floor materials - High-corrosion and wear-resistant floor coatings for chemical workshops and high-end manufacturing plants

Specifications Of Kukdo Chemical SMPN-638S Epoxy Resin

AppearanceSemi-solid resin, Light Yellow to Yellow
TypePhenol-Type Phenolic Novolac Epoxy Resin
Epoxy Equivalent (g/eq)170-190
Viscosity (25℃, Solution Viscosity)H-J
Solid Content (%)100
Density (20℃, g/cm³)1.17-1.19
Glass Transition Temperature (Tg, ℃)≥140
Color (Gardner)≤3.0
Hydrolyzable Chlorine (ppm)≤200
Long-Term Service Temperature (℃)≤180


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